| 摘要 |
PURPOSE: A Fresnel lens complex for collecting solar energy is provided to increase the efficiency of colleting heat through a square collecting panel by shortening the focus distance of a lens to minimize heat loss. CONSTITUTION: A Fresnel lens complex for collecting solar energy assembly are formed by laminating square Fresnel lenses. The square Fresnel lenses are overlapped in orthogonal direction. The square convex lens is arranged at the center. Lens elements of the pyramid shape are arranged the circumference of the square convex lens. The focal distance of the lens assembly is shortened to reduce heat loss in a collection process.
|
